Sundyne LMV-311 Manual

14845 W. 64th Avenue • Arvada, Colorado 80007 USA • +1-303-425-0800 • FAX: +1-303-425-0896 • www.sundyne.com Sundyne Europe • Longvic Cedex • France • 33-3-80-383300 • FAX: 33-3-80-383371

ANSIMAG • ANYSPEED • CASTER • GSP • HMD/KONTRO • MASO/SINE • SCMP • COMPRESSORS • SUNDYNE • SUNFLO

SUNDYNE LMV-311 PUMPS

Instruction and Operation Manual

March 2005

14845 W. 64th Avenue • Arvada, Colorado 80007 USA • +1-303-425-0800 • FAX: +1-303-425-0896 • www.sundyne.com Sundyne Europe • Longvic Cedex • France • 33-3-80-383300 • FAX: 33-3-80-383371

ANSIMAG • ANYSPEED • CASTER • GSP • HMD/KONTRO • MASO/SINE • SCMP • COMPRESSORS • SUNDYNE • SUNFLO

Copyright

All rights reserved. No part of this publication may be reproduced, stored in a retrieval system or transmitted in any form or by any means, electronic, mechanical, photocopying, recording or otherwise without the prior permission of Sundyne Corporation. © 2005 Sundyne Corporation

Warranty

Sundyne Corporation warrants to Buyer for a period of twelve (12) months from the date of being placed in service (but not to exceed eighteen (18) months after the date of shipment) that the equipment at the time of shipment will be free from defects of design, material and workmanship. If any defects or malperformance occur during the warranty period, Sundyne’s sole obligation shall be limited to alteration, repair or replacement at Sundyne’s expense, F.O.B. Factory, of parts or equipment, which upon return to Sundyne and upon Sundyne’s examination prove to be defective. Equipment and accessories not manufactured by Sundyne are warranted only to the extent of and by the original manufacturers’ warranty. Sundyne shall not be liable for damage or wear to equipment caused by abnormal conditions, vibration, failure to properly prime or to operate equipment without flow or caused by corrosives, abrasives or foreign objects. THE FOREGOING WARRANTY IS EXCLUSIVE AND IN LIEU OF ALL OTHER WARRANTIES, WHETHER EXPRESSED OR IMPLIED INCLUDING ANY WARRANTY OF MERCHANTABILITY OR FITNESS FOR ANY PARTICULAR PURPOSE. In no event shall Sundyne be liable for consequential or incidental damages

Sundyne Corporation http://www.sundyne.com ii

ContentsContents.............................................. ii

INTRODUCTION.................................. 1

Sundyne Centrifugal Pumps ............... 1

Text Symbols........................................... 1

Equipment and Safety Precautions .. 1 Wearing Personal Protective Equipment) ............................................ 2 Using Forklifts ....................................... 2 Ensuring Electrical Safety ................... 2 Testing Equipment ............................... 2 Using Chemicals .................................. 2 Protection from Falling ........................ 2 Preventative Machine Guards ............ 2 Explosion/Fire Hazard ......................... 3

Pre-Commission Checklist .................. 3 Familiarizing Yourself with the Pump 3 Driver Instructions ................................ 3 Verifying Auxiliaries.............................. 3 Installing a Seal Environmental Control System ..................................... 3 Checking Driver Rotation .................... 3 Piping Connections .............................. 3

Start-Up Checklist .................................. 4 Pressurizing the Fluid Loop ................ 4 Servicing the Gearbox ......................... 4 Auxiliary Lube Pump ............................ 4 Setting the Valves ................................ 4

Control Checklist ................................... 4 Verifying Operating Conditions .......... 4 Adjusting the Cooling Flow ................. 4

Installation and Start-Up Checklist ... 5

INSTALLATION................................... 7

Inspection................................................. 7

Storing Your Pump Short-Term ......... 7

Storing Your Pump Long-Term .......... 7

Suction and Discharge Piping ............ 8

Seal Environmental Control System. 9

Liquid Buffer System ............................ 9

Mounting Vertical Units Without Stands ....................................................... 9

Mounting Vertical Units with Stands (LMV) ....................................................... 10

Base Mounted (BMP) Units ............... 10

Driver and Coupling ............................ 10

Flexible Coupling for LMV Units Without a Vertical Stand..................... 11

LUBE SYSTEM.................................. 12

Lube System.......................................... 12

Gearbox Heat Exchanger ................... 12 Oil Manifolds ....................................... 12 Remote Heat Exchanger................... 13

Gearbox Sump ...................................... 13

SundGard® Oil Filter............................ 13

Main Lube Pump and Lube Oil Priming Kit ............................................. 14

Oil Pressure ........................................... 14

START UP ......................................... 15

Start-Up Procedures............................ 15

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Controlling the Pump During Startup................................................................... 16

Single Operation................................. 16 Parallel Operation............................... 16

OPERATION & CONTROL................ 17

Operation of Sundyne Pumps .......... 17 Suction Conditions ............................. 17 Minimum Flow Conditions................. 17 Entrained Gases................................. 17 System Head Curve........................... 17 Parallel Operation............................... 18

MAINTENANCE................................. 19

Disassembly of LMV-311.................... 19

Inspection, Cleaning and Repair...... 31 Inspecting All Bearings ...................... 31 High-Speed Shaft ............................... 31 Gearbox Mechanical Seal................. 31 Shaft Sleeve ........................................ 32

Bearing and Shaft Clearances .......... 32

Reassembly of the LMV-311.............. 33

Procedure for Checking the High-Speed Shaft Endplay........................... 47

TROUBLESHOOTING....................... 49

Gearbox & Pump Diagnostics .......... 49

Pump Mechanical Seal Diagnostics 51

SPECIFICATIONS ............................. 53

Falk Steelflex Type Coupling Specifications ....................................... 53

Falk Double Gear Type Coupling Specifications ....................................... 53

Falk Double Gear Type-Vertical Specifications ....................................... 54

Thomas Type DBZ Coupling Specifications ....................................... 54

Thomas SN Spacer Type Vertical & Horizontal Coupling Specifications 55

Gearbox Lube Oil Specifications ..... 56

Gearbox Parts List ............................... 57

Gearbox Replacement Parts ............. 58

Gearbox and Pump Torque Values . 59

Mechanical Seals ................................. 60

Pump Disassembly Replacement Parts......................................................... 62

Pumps Parts List .................................. 63

Double Seal Arrangement and Parts................................................................... 64

Single Seal Arrangement and Parts 65

Tandem Seal Arrangement and Parts................................................................... 66

Separator Arrangements.................... 67

Pump and Gearbox Cross Section (Single Seal Arrangement)................. 68

LMV-311 Gearbox (Exploded View). 69

Pump Casing and Seal Housing (Exploded View).................................... 70

Gaskets ................................................... 71

INDEX ................................................ 72


1

INTRODUCTION

Sundyne Centrifugal Pumps

Sundyne pumps provide high-energy performance and competitive efficiencies in an industrial quality, compact unit that is simple to maintain. Sundyne pumps are single stage that utilize an integral gearbox. Designed to increase the pressure of a continuous flow of fluid by applying centrifugal action, Sundyne pumps are most commonly used in HPI, CPI, and Boiler Feed applications. Commonly applied in refineries, petrochemical plants, and power generation plants, Sundyne pumps are used in high-head, low-to-medium flow processes.

This manual presents installation, servicing, troubleshooting, maintenance and spare parts information for the latest configuration of Sundyne centrifugal pumps.

Note: Parenthetical numbers included in the text correspond to item numbers on the illustrated figures. The correct spare part can be ordered for any generation pump by referencing the item and serial numbers.

Text Symbols

The following symbols may be found in the text of this guide.

They have the following meanings:

WARNING: Text accompanied by this symbol indicates that failure to follow directions could result in bodily harm or death.

ELECTRICAL HAZARD: Text accompanied by this symbol indicates that failure to follow directions could result in damage to equipment.

RECOMMENDED: Text accompanied by this symbol indicates recommended usage.

REMINDER: Text accompanied by this symbol indicates a reminder to perform an action.

EQUIPMENT USE ALERT: Text accompanied by this symbol indicates that failure to follow directions could result in bodily harm or death.

Equipment and Safety Precautions

Sundyne Corporation manufactures centrifugal pumps to exacting International Quality Management System Standards (ISO 9001) as certified and audited by Lloyd’s Register Quality Assurance Limited. Genuine parts and accessories are specifically designed and tested for use with these products to ensure continued product quality and performance. Sundyne cannot test all parts and accessories sourced from other vendors, incorrect design and/or

fabrication of such parts and accessories may adversely affect the performance and safety features of these products. Failure to properly select, install or use authorized Sundyne pump parts and accessories is considered misuse and damage or failure caused by misuse is not covered by Sundyne’s warranty. Additionally, modification of Sundyne products or removal of original components may impair the safety of these products and their effective operation.


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Note: Safety procedures must be applied prior to any installation, maintenance, or repair of a Sundyne pump. Failure to follow safety precautions may lead to injury!

Wearing Personal Protective Equipment) To ensure safety, protective equipment must be worn at all times when installing, performing maintenance or repairing equipment. The following safety recommendations must be adhered to for optimum safety:

• Safety glasses, with the minimum requirement of side shields, must be worn at all times.

• Steel-toed shoes must be worn when lifting equipment greater than 15 pounds (7 kg) or if pallet jacks or forklifts are operated.

• Hearing protection is strongly recommended at all times when noise levels exceed 85 dB during an eight (8.0) hour period.

Note: Chemical resistant gloves must be used if chemical use is required (refer to Using Chemicals for additional information).

Note: A dust mask respirator must be worn if chemicals have warning labels regarding fumes, dust or mists.

When using more than one piece of protective equipment, consider their compatibility. For example, safety glasses will not interfere with hearing protection seals. Be sure to clean all pieces of personal protective equipment immediately after each use.

Using Forklifts Any persons operating a forklift must have an active recognized operator license.

Note: Before initializing forklift operation, verify that the lift is in a safe operating position.

Ensuring Electrical Safety All electrical sources must be powered-off before installation, service or repair of equipment occurs.

Note: Sundyne recommends that a Lock-out/Tag-out program be followed prior to altering the equipment. Locks or tags must be provided to warn employees that equipment is temporarily unavailable.

Once all work has been completed, the person installing the lock or tag must remove it according to company procedure.

Testing Equipment Prior to performing a test on newly installed, maintained or repaired equipment, all personnel in the immediate area must be warned.

Note: Follow company procedures prior to equipment testing at all times.

Using Chemicals Any chemicals to be used must be accompanied by a relevant material safety data sheet (MSDS), in accordance with government legislation. If applicable, use chemical proof gloves.

Note: An eye wash station (or equivalent) should be available in the event of injury. If any hazardous or flammable chemicals pass through the equipment, a complete decontamination of the equipment is required.

Protection from Falling Fall protection and associated preventative measures is required when working on equipment located six feet or higher from the ground.

Note: Follow company fall prevention procedures prior to working on equipment.

Preventative Machine Guards Preventative guards must remain in place on all equipment.

Note: Only remove the guards while performing maintenance or repair.

Replace the guards immediately after working on the equipment and prior to start up.


3

Explosion/Fire Hazard Note: Never use an acetylene torch or open

flame to attempt to remove parts that have seized together in Sundyne equipment. Any residual process gas or liquid that is flammable can result in an explosion or fire with potential for serious injury or death.

Pre-Commission Checklist

Familiarizing Yourself with the Pump Before servicing and starting up the Sundyne pump, carefully review all information on the product, including:

• Specification sheets

• Outline drawings

• Performance curves

• Instruction and related manuals

• System P&ID/Process Flow Diagram (Clients equipment)

• Control system and operational philosophy/narrative (Client)

Familiarize yourself with the pump configuration before starting and operating the pump.

Driver Instructions Carefully follow all installation and starting instructions provided by the driver manufacturer. This information is included in the final data package.

Verifying Auxiliaries Before start up, verify that the following auxiliaries are met:

• Check the utility connections

• Verify that the auxiliary piping conforms to Sundyne standards, as indicated in the detailed specifications

• Verify all switch and instrument connections

• Verify that all switch and instrument settings are set to normal operating standards

• Calibrate all measurement equipment, such as flow meters, ampere meters, and pressure meters, etc.

Installing a Seal Environmental Control System Install a system to control the seal environment. Also, verify that port 1 is properly vented.

If required, install drain piping overhead to ensure that the environment operates under normal conditions. For more information, contact Sundyne Corporation.

Checking Driver Rotation If the driver is coupled, un-couple; then verify that the direction of the driver rotates in the same direction as the arrow stamped or cast on the pump casing.

If the driver is splined, check the direction of the motor fan.

Piping Connections Verify that the following bolted or threaded connections are tight:

• Pump flange bolts

• Seal environment piping and port connections

• Cooling water connections to heat exchanger (if applicable)

• Gearbox oil drain plug

• Pump case drain plug


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Start-Up Checklist

Pressurizing the Fluid Loop Pressurize the double seal buffer loop or external seal flush, if applicable, prior to admitting fluid into the pump casing.

Servicing the Gearbox Fill the gearbox with lube oil up to a quarter inch (¼) or 6 mm from the top of the oil level sight glass.

Note: Prior to using lube oil, verify that it conforms to acceptable lube oil specification standards. Refer to the SPECIFICATIONS section in this manual for more information.

Under normal operation, the lube oil level will lower about a quarter inch more than when idle. Additionally bubbles will appear at the top of the sight glass.

Note: Sundyne recommends that gearbox lube oil be changed at least every six months.

For requirement information about priming the lube oil system, refer to the start-up section in this manual.

Auxiliary Lube Pump If your pump includes an auxiliary lubrication pump, unlock the electrical circuit and move it to the “hand” position. Check for oil leaks and recheck the oil level.

Setting the Valves To set the pump to the designated operating point, start the pump with the suction valve in the open position while throttling the discharge valve.

Control Checklist

Verifying Operating Conditions Verify the following parameters against the specifications on the specification sheet:

• Suction pressure

• Suction temperature

• Discharge pressure

• Total head

• Flow rate

• Power consumption

• Specific gravity

• Viscosity

• Net Positive Suction Head (NPSH)

The status of these conditions will significantly alter performance of the pump if they are not in accordance with the specification sheet.

Check with your Sundyne representative if the operation conditions of your pump must run under different parameters than indicated by the specifications on the specification sheet.

Adjusting the Cooling Flow If your model pump includes an installed heat exchanger for the gearbox, adjust the cooling flow to keep the temperature of the gearbox sump at 140°-160°F (60°-71°C). Maximum recommended temperature is 180°F (82°C).


5

Installation and Start-Up Checklist

Note: Lock out all switch gears, including main driver, auxiliary lubrication system and instrumentation before working on this equipment.

This checklist is NOT intended to be inclusive. You must read and follow: instruction manuals, outline drawings, specification sheets and curves for this equipment during installation, commissioning, and operation. Your total satisfaction is our goal. Please call with any questions or comments. Be sure to have the unit serial number that is imprinted on the gearbox nameplate, and request “Sundyne Field Service”.

Is all the information underlined above readily available?

Are the following bolted/threaded connections tight?

o Pump flange bolts?

o Seal environment piping and port connections?

o Cooling water connections to heat exchanger(s)(if applicable)?

o Gearbox oil drain plug?

o Pump case drain plug?

There are two types of connections between the motor and gearbox; a splined shaft or a coupling. For splined connections, the splined shaft must be lubricated with the supplied spline grease and the two o-rings installed prior to mounting the motor. It is recommended that the input shaft be rotated by hand prior to mounting the motor. If the unit has a coupling, be sure the coupling gap is correct and bolting between coupling halves is tight. This instruction manual contains coupling set-up information. It is not necessary to align the coupling for run-out or flatness as this is controlled by the rabbet fits on the gearbox and coupling adaptor.

Is a check valve installed in the discharge line?

Is Port 1 open to atmosphere or piped to safety drain or flare or vent header? (Back pressure must not exceed 5 psig).

Note: A drip leg must be used if the Port 1 connection rises from the seal housing.

Are all other seal system ports identified and connected according to the outline drawings?

Is gearbox filled to within ¼” (6.35mm) of the top of the sight glass with the approved oil and the breather fitting installed? Oil capacity is 7 quarts (6.6 liters). Is the needle valve on the gearbox pressure gauge open? Removal of the vent plug below the fill/vent fitting will speed filling.

Has the oil filter, heat exchanger, and related piping been filled with oil (primed)?

Do process conditions, suction pressure, suction temperature, discharge header pressure, and specific gravity agree with specification sheet information? DO NOT test the pump on water unless it is designed for water. Check with your representative or Sundyne Corporation if you must test on a different fluid than shown on the specification sheet.

If you have auxiliary lubrication pump, unlock the electrical circuit and start it in the “hand” position. Check for oil leaks and recheck the oil level. If the process suction pressure exceeds 460 psig (32.3 kg/cm2g), the auxiliary lube pump should be running prior to and anytime the suction is pressurized.

Prior to starting the unit, have you opened the suction valve fully and discharge throttled to allow design flow, typically 40-50% open? Check the control valve to be sure it is functional. Inspect the case drain, ports, and flanges for leaks. Has the pump been vented through Port 6? Open both supply and return valves supplying cooling water to the gearbox heat exchanger. Check suction pressure to be sure it agrees with the specification sheet.


6

Unlock the main driver circuit and bump the motor. Rotation is CCW as viewed from the top end of the motor. Is rotation correct? Once rotation is verified, run motor for 1 second on, 20 seconds off. Do this several times until gearbox oil pressure gauge shows pressure, then start the main driver. Oil pressure will be between 15-60 psig (1.1-4.2 kg/cm2g) depending on the type of bearings in the gearbox. After commissioning, bumping the motor is not required.

If pressure control is being used, throttle the discharge valve immediately after start-up. Does the discharge pressure agree with the specification sheet? If flow control is being used, adjust the valve until flow agrees with the design value listed on the specification sheet.

Once the gearbox oil temperature has stabilized, adjust cooling water supply until the oil temperature is 140-160°F (60-71°C) on units equipped with heat exchangers. Maximum recommended temperature is 180°F (82°C).

Listen for any unusual noises or pressure fluctuations.

Note: If you have any questions or concerns about these procedures or the information supplied, please call your representative or Sundyne Corporation.


7

INSTALLATION

Inspection

Immediately inspect your Sundyne product upon receipt of the equipment. Check for any damage, which may have occurred during shipment. Notify the carrier and Sundyne immediately if damage is evident.

Note: The input shaft on the pump may not turn freely due to seal drag and speed increasing gear meshes. If the input shaft does turn freely, and if rotation is “not smooth,” damage may have occurred during shipping.

Storing Your Pump Short-Term

If your Sundyne pump is not to be installed immediately, protect it from exposure to moisture and dust. Do not remove the factory installed shipping covers for casing flanges and

seal ports. Ensure that the shipping covers be kept securely in place.

Note: Observe the storage instructions provided by the driver manufacturer.

Storing Your Pump Long-Term

In addition to the precautions in the short-term section above, additional precautions are required for long-term storage.

If your Sundyne pump will not be operated for a period of time exceeding six months from the date of shipment, long-term storage conditions must be met to ensure minimum corrosion damage to the gearbox and fluid-end components.

Note: Sundyne does not accept liability for equipment damaged during the storage period. Sundyne does not guarantee the quality of equipment during and after the storage period.

To ensure the original quality of the Sundyne pump after storage, all components must be inspected by an authorized Sundyne service engineer. Components that are not manufactured by Sundyne (except mechanical seals) must be inspected by its own manufacturer.

Note: Any inspection fees are the sole responsibility of the purchaser.

Factors which affect the quality of a Sundyne pump, when stored, are:

• Humidity

• Temperature

• Surrounding chemicals

Long-term storage methods must prevent damaging conditions from making contact with the internal components of the equipment. When the equipment is stored in strong chemical environments or near salt water, protection must occur immediately upon receipt of the equipment.

Recommended Long-Term Storage Procedures Sundyne recommends that you do the following to prevent damage to your pump during long-term storage:


8

1. Store your pump only in an indoor, climate controlled building. These conditions will maintain constant temperature and humidity.

2. Perform inert gas purging of component internals.

3. Ensure oil flooding of gearbox internals.

4. Use desiccant bags.

Note: Because long-term storage of equipment is of a highly critical nature, it is recommended that Sundyne be contacted to provide more details on the above procedures.

Suction and Discharge Piping

Please adhere to the following best practices for installing and maintaining suction and discharge piping:

1. Install a suction (35-40 mesh) strainer and clean the suction line prior to starting the pump. This procedure will protect the impeller from damage by mill scale, welding slag, or other foreign particles during initial startup.

Note: Sundyne Recommends installation of a differential pressure instrument across strainer to indicate strainer condition.

2. When installing piping to the pump, ensure that all piping is supported independently from the pump.

3. All piping must always line up with the pump flanges.

Note: Never use force to position piping into place at the flanged suction and discharge connection locations. Failure to have piping properly aligned may impose excessive strains on the unit.

4. Sundyne recommends using a straight pipe assembly of at least three times the length of the pipe diameter.

Note: Carefully select the size of pipe and fittings to be installed so that friction losses will remain low.

5. Never use a suction pipe that is smaller in diameter than the pump suction inlet.

6. Sundyne recommends installation of a discharge check valve to prevent reverse rotation.

7. Use block valves (both suction and discharge) when isolating the pump during shutdown. This practice will minimize process leakage and prevent possible reverse rotation from pump back-flow.

8. It is recommended that suction and discharge pressure gauges be installed on any pump that is not flow controlled. If no flow measuring device is installed there is no way to determine accurately where on its curve the pump is operating.


9

Seal Environmental Control System

A seal environmental control system may be required depending upon the pump seal arrangement and application.

Always maintain the pump seal environment as detailed on the specification sheet that accompanies each unit.

Note: For most applications, a standard control system can be obtained from the factory.

Ensure that the specified seal environmental control system is properly installed and that the ports are open (or plugged) as indicated in Figure 1.

Note: Port 1 must always be open so that it is free to drain.

Figure 1. Seal Housing Port Identification

Liquid Buffer System

For double liquid seals and tandem liquid seals, a liquid buffer system is used. Introduce the buffer liquid into port 7, which will flow through the seal cavity, and out from port 2.

Buffer flow should be 0.5 to 3 gpm (2 to 12 liters/min) with an inlet temperature of 60o to 120oF (16o to 49oC), and inlet pressure as indicated on the pump specification sheet. The liquid must be clean to 5 microns.

Mounting Vertical Units Without Stands

For all vertical units without stands, a mounting base is recommended. The pump should be mounted on a rigid foundation, secured in position by one-inch diameter bolts. The bolts

should be installed in the foundation as shown on the installation drawing. The length of the bolts should be sufficient to extend at least ½-inch above the nut.


10

Mounting Vertical Units with Stands (LMV)

Grouting of the base plate is required for all vertical stand units. The top of the stand (driver mounting surface) should be leveled by shimming under the base prior to grouting the

channels that are to be filled with grout through the access holes. The nuts on the foundation bolts should not be tightened until the grout has set for at least 48 hours.

Base Mounted (BMP) Units

Grouting of the base plate is required on all BMP units. The base plate should be leveled prior to grouting. After grout has been applied, it must

be allowed to set for at least 48 hours before tightening foundation bolts.

Driver and Coupling

Drivers are normally shipped separately from the gearbox and pump. When a splined interconnecting shaft is supplied, this shaft must be lubricated at each end with one tube (5cc) of anti-fretting compound (Sundyne Part Number MP01AA10).

Also available are solid shaft drivers coupled to the gearbox with a flexible coupling. Drivers are to be installed and maintained in accordance with the manufacturer’s instructions.


11

Flexible Coupling for LMV Units Without a Vertical Stand

Note: Lock out the driver starting switch before working on the coupling.

When installing flexible couplings, use those supplied by Sundyne to ensure tolerance of parallel and angular misalignment, and axial end float. Use flexible disc couplings or gear type couplings if not using those supplied by Sundyne. Coupling installation for turbine drivers is identical to that for motors.

The gearbox coupling hub is normally mounted at the factory. The driver coupling hub is mounted on all motors and turbines shipped directly from Sundyne.

Driver Coupling is Not Mounted If your product is received without the driver coupling hub mounted, use the following procedure when installing Falk or Thomas couplings:

1. Measure the distance from the top surface of the gearbox hub, to the datum face of the driver adapter. This measurement is referred to as dimension”X”.

Figure 2. Dimension X

2. Determine the end gap (the distance

between each coupling hub) for the size of coupling provided. Refer to the Coupling Specifications tables in the Specifications section of this manual for specific measurements.

3. Subtract the end gap value from dimension X to determine the distance from the driver datum face to the coupling hub face. This value is referred to as dimension “Y.”

Figure 3. Dimension Y

4. Scribe the shaft to show dimension Y.

5. Ensure that the coupling hub bore, keyways, and shaft are clean and free from burrs. Also determine that the key fits in the keyways.

6. Heat the hub in an oil bath or oven to approximately 250oF (121oC),or more if necessary, so that the hub will slide onto the motor shaft.

7. Position the hub at the scribed line on the shaft.

8. Tighten the hub key set screw.

Note: Before the hub is installed onto the flexible disk couplings, verify that the coupling bolts and washers can be assembled (Figure 4) from the motor side of the hub when installed. If these pieces do not assemble, insert short bolts with bevel washers into the hub flange before fitting them onto the shaft.

Figure 4. Assembly of Coupling Bolts and Washers


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LUBE SYSTEMLube System

The internal lube oil system engineered for Sundyne pumps consist of four major components. They are:

• Gearbox sump

• Main lube pump

• Oil heat exchanger

• Oil filter

The lube pump intakes oil from the sump and passes it internally to an externally mounted manifold. The oil is then passed through the heat exchanger, the filter, and back into the gearbox. Once the oil is passed through the bearings, it then drains back into the sump.

Gearbox Heat Exchanger

The standard heat exchanger is a shell and tube water-cooled type. For optimum performance, the following conditions must be met.

• Cool water must be provided to the tube side at a maximum pressure of 150 psig (11 kg/cm2)(103.5Kpag).

• Coolant flow must be controlled to maintain a gearbox sump temperature between 140°F and 160°F (60°to 71°C). Maximum recommended temperature is 180°F (82°C).

The optional air-cooled heat exchanger should be controlled to maintain the same gearbox sump temperatures as above.

Mount the heat exchanger lower than the oil filter to prevent air pockets in the lube oil lines at start up. Air pockets can cause oil starvation at the bearings.

Note: The heat exchanger installation is a Sundyne assembly and should not be rearranged. The heat exchanger is NEVER mounted higher than the filter.

Oil Manifolds There are two standard oil manifold configurations, MA01AA78 for units without heat exchangers and MA01AA79 for units with heat exchangers. For units purchased prior to 1991, the standard manifold is MA01AA01.

Figure 5. Heat Exchanger Manifolds MA01AA78 (left), MA01AA79 (center),

MA01AA01 (right).


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Figure 6. Heat Exchanger Mounting for MA01AA01 (units prior to 1991)

The MA01AA01 model requires a ¼” socket-head pipe plug in the filter manifold when using the gearbox heat exchanger. The plug must be

removed when the heat exchanger is not being used.

Remote Heat Exchanger All air-cooled heat exchangers as well as some large water-cooled heat exchangers must be mounted away from the gearbox.

Note: Interconnecting piping is the purchaser’s responsibility unless the piping is included with packaged units.

All connecting piping, including fittings, must not exceed 20’ (6m). The minimum requirement of all piping is 5/8” (16mm) inner diameter (I.D.) tubing or piping. If pipe lengths exceed 20’ (6m), then the pipe diameter must be increased accordingly.

Gearbox Sump

The gearbox sump holds approximately seven U.S. quarts (6.6 liters) of oil, not including the oil contained within the auxiliary piping and heat exchanger. The oil level must always be maintained as recommended by Sundyne.

Note: Sundyne recommends that the oil level must be within ¼” of top of the round sight glass when the machine is static (refer to the mark labeled “MAX”).When the pump is in operation, the level will be approximately ¼” below the MAX level, with bubbles filling the rest of the glass. Do not overfill the gearbox. Overfilling will cause overheating/ excessive foaming.

Gearbox Sump Heater (optional) When gearbox oil temperature falls below –20°F (-29°C) it becomes too viscous for proper lube pump operation. A sump heater is required when these conditions may exist. Two types of sump heaters are recommended for these conditions–electric or steam.

SundGard® Oil Filter

The specially designed oil filter is rated for 3 microns at a beta ratio of 200.

Note: Oil filters other than Sundgard®-OEM filters will void the Sundyne warranty.

The gearbox oil and filter should be changed every six months. Refer to the Lube Oil Specifications in the Specification section of this manual for more information.


14

Main Lube Pump and Lube Oil Priming Kit

Note: Use the auxiliary lube oil priming pump to circulate oil around the heater when the main drive motor is not running.

The main lube pump is a positive displacement gear type pump directly driven by the input shaft.

A pre-lube system is required on some pumps. The kit consists of:

• Motor driven positive displacement pump

• Check valve

• Gages

• Necessary piping

To start the pump, allow the pre-lube pump to run for approximately 30 seconds. There should be a minimum indication of 7 psig (0.5kg/cm2) maintained for 30 seconds before starting the main driver. If the oil piping has been drained, allow several minutes of operation to bleed trapped air from the system.

Note: Only allow shut down of pre-lube pump after main driver is at full operating speed.

Figure 7. Lube Oil Schematic

Oil Pressure

During normal operation the gearbox internal lube pump will maintain oil pressure between 15 and 60 psig (1.0 and 4.2kg/cm2). This oil pressure can vary depending on the bearing

configuration and characteristics of the oil being used.

Note: Never operate the gearbox with oil pressure less than 10 psig (0.7 kg/cm2)


15

START UP

Start-Up Procedures

Perform the following tasks to start the Sundyne pump.

1. Run-in of pump: If the pump is to be run under conditions which are considerably different from those conditions listed on the spec sheet (such as a change in specific gravity, suction pressure, flow rate, etc.) the factory should be consulted to ensure that the run-in conditions are compatible with the pump.

2. Check to ensure that the driver has been serviced per instructions provided by the driver manufacturer.

3. Auxiliaries - Check utility connections; verify that auxiliary piping is per Sundyne drawings; verify switch and instrument connections and set points; calibrate flow instruments and other transmitters.

4. Flushing screens should be installed in all field assembled piping connections.

5. Check the pump specification sheet and outline drawings for seal environment requirements. Be sure seal housing port piping is properly connected. If double seals are used, buffer fluid must be pressurized before suction pressure is applied to the pump. Port 1 must be open. Maximum allowable back pressure on Port 1 is 5 psig (0.35 kg/cm2).

6. Fill the gearbox with oil.

Remove the gearbox fill-vent plug and the filter-breather cap from the fill opening on the gearbox. Fill gearbox within ¼ inch (6.4 mm) from top of oil level sight glass with lube oil which conforms to the specification in Table 8. Where applicable, operate auxiliary lube pump to fill heat exchanger and filter. Add oil as necessary through fill fitting until oil level stabilizes in sight glass. The gearbox alone requires approximately 7 quarts (6.6 liters). Replace the filter breather cap on the fill-opening fitting and replace the fill-vent plug. If an auxiliary lube pump is not used, remove the plug on top of the oil filter (item 924g) manifold and fill the

oil filter and the heat exchanger with oil (Figure 6).

7. Prime the lube oil system

The following actions must occur at the time of initial pump installation and following every re-installation after maintenance that required the draining/removal of the gearbox lubricating fluid.

Verify that gearbox lube oil pressure will be achieved by priming the lube oil system and expelling all of the air that is potentially trapped. Priming can be achieved by either operating the (optional) auxiliary lube oil priming pump or by jogging the main driver connected to the gearbox (oil pressure should be observed by the second or third jog - each of 2-3 seconds duration).

Note: Jogging is required for initial installation or following re-installation after maintenance and re-filling of gearbox lubricant. Units remaining idle should be jogged once a month to prevent the bearings from brinelling and to prevent internal rusting.

Jogging is also used to verify proper direction of rotation for the main driver. Jogging is a prudent, conservative activity that can be quite useful to ensure long service life of the Sundyne high-speed products by providing a fluid film of lubricant on the surfaces of bearings and gears.

After priming the lube oil system, check the oil level in the gearbox sump, and add oil as necessary.

Note: Never start the pump against a closed discharge valve. Always check to ensure that the discharge valve is partially open.

After priming the lube oil system as defined above, the pump can now be routinely started without the need of jogging. This would include switching of main/stand-by units, start-up of idle reserve units, start-up


16

of emergency units, etc. Non-operating units should be started/used every 9-12 months on an alternating basis.

8. If an auxiliary lube system is installed, it should be used in the following manner.

a) At the initial startup or after changing the lube oil, run the pump for several minutes to work any trapped air out of the piping. Adjust the relief valve on the auxiliary pump to provide 25 psi (1.76 kg/cm2) oil pressure to the system.

b) The auxiliary system is intended to provide oil before starting the main driver. It should run for a minimum of 5 seconds at minimum pressure before the main driver is started. Pressure switches and time delays can be used if automatic start sequences are desired.

c) After the start of the main driver, oil pressure will be supplied by the main lube pump inside the gearbox. An increase in oil pressure should be observed. Shut down the auxiliary pump within two minutes of the main driver start.

9. Adjust the heat exchanger cooling flow to regulate the gearbox sump temperature between 140° and 160°F (60o and 71°C). Approximately one hour may be required to stabilize the temperature. Maximum recommended temperature is 180°F (82°C).

Controlling the Pump During Startup

To ensure control of the pump during start up, follow the start up procedures for your desired configuration.

Single Operation Start the pump with the suction valve open while throttling the discharge valve. This will ensure that the pump will reach the design flow operating point.

If the process fluid is near its vapor pressure, open the supply vessel seal cavity vent so that the pump can fill with liquid.

Parallel Operation To prevent back-flow, place check valves in the discharge piping of each pump.

Note: Sundyne recommends installing separate bypass loops around each pump for additional operational flexibility.

1. Start the first unit as described in the Single Operation instructions.

2. Start the second unit with the bypass valve set to maintain the flow above minimum flow.

3. Open the discharge valve on the second unit so that the design flow of both units is maintained.

Note: Do not operate the pumps at their peak head capability.

Sundyne recommends that separate flow controls be used on each pump to provide a lower minimum flow range than is achieved by pressure control.


17

OPERATION & CONTROL

Operation of Sundyne Pumps

Under normal operation, several factors must be taken into consideration to ensure successful pump operation. Experienced pump operators will be aware of jeopardizing factors and their effects.

Suction Conditions Improper flow of liquid into the impeller is the most common operational abuse of centrifugal pumps. Two conditions must exist to prevent turbulence at the eye of the impeller.

• Proper suction piping, see suction piping section.

• Liquid reaching the impeller eye must have enough vapor pressure to prevent the fluid from flashing to a gas in the impeller. If this condition occurs, it will cause cavitation, which can damage the impeller and inducer. When centrifugal pumps cavitate the noise sounds like the pump is “pumping gravel”. In high speed, single stage pumps, this sound may not be discernable. Cavitation can be prevented by maintaining suction pressure at a high enough level and suction temperatures low enough to maintain Net Positive Suction Head (NPSHa) available greater than Net Positive Suction Head (NPSHr) required by the pumps.

Minimum Flow Conditions Vibration and noise will occur during operation of centrifugal pumps if either of two conditions exist:

• Internal flow separations

• Recirculation at low flow conditions

If the operator is noticing excessive noise or vibration, operation must be suspended until the cause is determined and corrected. Continued use may cause damage to the pump. Resonance in the discharge line can accentuate noise, vibration, and damage to the pump, primarily when a control valve is located an excessive distance downstream from the pump.

Entrained Gases The head and capacity of centrifugal pumps will be reduced by gas that is drawn in with the liquid. Under normal operating conditions, centrifugal pumps can tolerate up to 2% of gas (by volume). Entrained gases can cause damage to mechanical seals with the exception of double seals. If you have entrained gas, contact Sundyne for further instruction.

System Head Curve The point of intersection between the system curve and the pump characteristic curve determines the flow or operation for the centrifugal pump. For steady flow to occur, the system curve must intersect the pump characteristic curve at a significant angle. The following diagram gives examples of satisfactory and unsatisfactory angles of intersection.

Figure 8. Typical Operation


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Note: The curve for pump A has a significant angle of intersection with system curves D and E. The system curve D could represent a system with the control valve wide open while curve E could represent the same system but with the throttle valve closed to reduce flow from flow 1 to flow 2. Pump curve B, on the other hand, will provide only flow 2, even with the control valve wide open (curve D). When the control valve is partially closed to create system curve E, the curve E and lower pump curve B are practically parallel. The lack of a significant angle of intersection means that the system is unstable, pump flow is likely to fluctuate erratically and not respond to control valve position.

Parallel Operation Maximizing control is critical when operating centrifugal pumps in parallel. One pump can overpower the other in regards to head at a lower total flow. If a simple, unrestricted manifold connects two pumps at the discharge head, the discharge head of one pump is imposed on the other. All pumps will see the same discharge head at a given time. This is demonstrated on the following diagrams.

The characteristic curves of two pumps designated A and B are demonstrated in the Parallel Operation figure.

Since no two pumps will have exactly the same performance, it is assumed that pump A produces a slight amount more head than pump B. The pumps are arranged with a common manifold as shown in Parallel Units Common Valve figure.

Figure 9. Parallel Operation

Figure 10. Parallel Units Common Valve

The pressure in the manifold is set at P1; the flow through pump A indicated as A1 on the preceding curve. At the same time, the flow through pump B is indicated as B1. However, if the throttle valve is closed to cause the manifold pressure P to rise to P2, then flows through pump A and B are A2 and B2 respectively. If the throttle valve were closed even further, then pump B would cease to flow entirely. Since pump B would effectively be deadheaded, the fluid in it would heat up and boil. During internal boiling, it could encounter liquid slugging and probable damage to the pump. Proper selection of a control system can prevent this situation.

FLOW


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MAINTENANCE

Disassembly of LMV-311

STEP 1 Remove attached hardware and lift the driver up off the gearbox. Remove the nuts from the pump casing studs. Lift the gearbox and seal housing up off of the pump casing.

Note: Ensure the impeller is protected from coming in contact with any objects that may cause damage.

Lifting gearbox from pump casing.

STEP 2 Remove vent cap from gearbox.

STEP 3 Install the anti-rotation device to prevent impeller from spinning.

Installing anti-rotation device

Note: Place the gearbox on a suitable support with the impeller pointing upward.


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STEP 4 Remove inducer or impeller nut. Note: Left hand thread.

STEP 5 Remove impeller using prying tools. Note: The impeller is dynamically balanced

and must be replaced or rebalanced if any signs of damage are visible.

STEP 6 Remove diffuser cover using prying tools. Note: Groove on side of diffuser cover is for

prying, and not for an o-ring.

STEP 7 Remove mechanical seal mating ring.

Mating ring should slide right off.


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STEP 8 Remove lower mechanical seal.

Remove three hex head screws and washers.

STEP 9 Remove lower shaft sleeve and o-rings above and below shaft sleeve.

Use extraction tool to slide o-rings up the shaft.

Notice shaft sleeve next to impeller side o-ring.


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STEP 10 Remove tandem-mating ring.

Use extraction tools to slide up, over shaft.

STEP 11 Remove four bolts holding seal housing.

STEP 12 Remove seal housing. Note: Use “S” hooks or eyebolts and hoist

when possible to avoid personal injury.

Lifting the seal housing using a hoist.


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STEP 13 Turn seal housing over and remove upper seal from seal housing.

Remove three hex head screws and washers.

Upper mechanical seal.

STEP 14 Remove the o-ring from the upper shaft sleeve.

Use extraction tool to remove o-ring.

STEP 15 Remove upper shaft sleeve.

STEP 16 Remove gearbox seal screws and gearbox seal.

Removing three hex head screws.

Note: The gearbox mechanical seal can be

replaced or rebuilt.


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STEP 17 Remove gearbox seal O-ring.

Use extraction tool to remove O-ring.

STEP 18 Remove gearbox seal mating ring.

Remove mating ring with extraction tools.

STEP 19 Invert the gearbox and remove fill and vent fitting.

Use a pipe wrench to remove the ¾ inch pipe elbow first. Next, use the pipe wrench to loosen the pipe and remove from the gearbox.

Slide the fill and vent pipe out of gearbox.


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STEP 20 Loosen and remove gearbox bolts, (7 total).

STEP 21 Loosen close tolerance alignment pin.

STEP 22 Drive close tolerance alignment pins out, (2 pins).

Use hammer to tap pin out.

STEP 23 Remove upper gearbox housing. A mallet can be used to tap around the edges of the housing to loosen the idler shaft and assist the housing in lifting off.

Note: Use hooks or eyebolts and a hoist when possible to avoid personal injury.


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STEP 24 Remove idler shaft assembly. Removing the idler shaft assembly disengages the upper idler and input shaft gears.

Technician is pointing to idler shaft.

STEP 25 Remove input shaft assembly.

STEP 26 Remove the lube pump spring and the lube pump.

STEP 27 Inspect the condition of the lube pump anti-rotation pin.

Extraction tool is touching anti-rotation pin.


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STEP 28 Remove bearing plate.

STEP 29 Remove and inspect upper thrust washer.

Washer will slide off of the shaft.

STEP 30 Remove idler shaft assembly.

STEP 31 Remove high-speed shaft assembly.


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STEP 32 Remove and inspect lower thrust washer.

STEP 33 Remove and inspect upper journal bearing after removing from bearing plate.

Unscrew three hex head screws.

Use fingers to remove journal bearing.

Inspect the upper journal bearing for damage or signs of excessive wear.

STEP 34 Remove input shaft lip seal.

STEP 35 Remove the sump tube.


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STEP 36 Remove lower journal bearing.

Repeat step 33 for removal of lower journal bearing.

STEP 37 Remove lower bearing shims.

STEP 38 Remove all the lube jets in lower and upper housing.

Use hex key to remove the lube jets.

STEP 39 Blow out lube passage.

Using air tool to blow out lube passages.

Blowing out lube passages.

STEP 40 Remove diffuser from the pump case.

Install three 5/16 eyebolts into the diffuser to use for hoisting the diffuser off of the pump case.


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STEP 41 Lift the diffuser from the pump case. Note: Use hoist when available to prevent

personal injury.


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Inspection, Cleaning and Repair

Inspecting All Bearings

Replace bearings if:

• They have been in operation for over three years

• If rotation is not smooth

• If outside of inside diameters are worn

Note: Only replace bearings with manufacturer’s approved replacement bearings. Non-approved bearings may jeopardize the mechanical integrity of the gearbox and pump.

Note: Refer to the Specifications section of the manual for all bearing and shaft clearances.

High-Speed Shaft Inspect the High Speed Shaft at the thrust washer and journal bearing contact areas. Replace the shaft and gear assembly if:

• Outside diameter of shaft is less than 1.4960 inches

• If the shaft has bearing or washer materials on it’s surface

• Shows signs of overheating

• Shows wear to a depth greater than 0.001” (0.03mm)

Inspect upper and lower thrust washers or tilting pad bearing assembly. If metal is smeared into radial lube grooves of the washer face, install a

new washer. If the tilting pads do not fit freely, or if they show signs of metal pick-up or overheating, install a new bearing assembly.

Note: The radial “free play” of the high speed shaft can be as high as 0.011 inch (0.28mm) due to the clearance in the bearings. It is not possible to check for shaft straightness while the gearbox is assembled. To check straightness, the shaft must be placed in V-blocks, on it’s bearing journals, and have runout measured at the impeller fit (0.0018 inch TIR max).

Gearbox Mechanical Seal Carefully inspect the seals for abrasive particles, excessive seal face wear and any binding of the seal face washer.

Replace or rebuild a faulty mechanical seal. Seals may be rebuilt by replacing the seal face washer, wedge rings, o-ring, and springs. A seal repair kit is available.

Replace or lap the seal rotating face if the wear track is rough or worn to a depth greater than 2 helium light bands.

A combined total of 0.010 inch (0.25mm) maximum may be removed from the surfaces of the pump and gearbox seal rotating faces. Excess material removal will result in incorrect seal face loading causing increased seal leakage.

Remove any high spots on the end surfaces of the lower shaft sleeve and impeller hub to insure that the seal rotating face will not be distorted by clamping force of the impeller bolt.

Reassemble the seal, throttle bushing, if used seal housing, and impeller using an o-ring repair kit. All o-rings that were disturbed by disassembly should be replaced. During reassembly, carefully check the torque values listed in Table 11.

The impeller may rub on the diffuser cover plate (15) until o-rings (936D and 936E) are compressed by tightening hex nuts (914A). Check the gearbox input shaft for freedom of rotation after the pump is assembled and all bolts are tightened per Table 11.


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Shaft Sleeve Ensure that there are no high spots on the end surfaces of the shaft sleeve or the impeller hub. High spots will distort the seal rotating face due to the clamping force of the impeller bolt. Ensure that shaft sleeve end faces are parallel within 0.0003” (0.0076mm).

Bearing and Shaft Clearances

Figure 11. Bearing and Shaft Clearances


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Reassembly of the LMV-311

STEP 1 Insert shim under lower journal bearing.

STEP 2 Install lower journal bearing.

Insert 3 hex head screws.

Note: Torque to 40 in-lbs

Note: Above picture has thrust washer already installed over journal bearing.

STEP 2 continued

Note: Using a torque wrench to tighten screws.

STEP 3 Install lower thrust washer if not already in place.


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STEP 4 Install high-speed shaft assembly.

STEP 5 Re-install the sump tube into the bearing plate.

STEP 6 Re-install the upper journal bearing into the bearing plate.

Note: Tighten hex head screws to 40 in-lbs.

STEP 7 Install new thrust washer.

Thrust washer is silver disc in center.

STEP 8 Install bearing plate without gasket using alignment pins.

Using alignment pin to install the bearing plate temporarily.


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STEP 9 Clamp bearing plate to the lower gearbox housing.

Clamping the bearing plate to housing.

Note: “C” clamps can be utilized to perform this task.

STEP 10 Inspect endplay of the high-speed shaft. Note: Endplay must fall within these

tolerances, 0.015” +/- 0.002”

Measuring endplay of High Speed Shaft.

Note: For complete instructions for checking endplay refer to the “Procedure for Checking High Speed Shaft Endplay” later in this manual.

STEP 11 Remove bearing plate and install lower housing gasket and o-ring at oil passage.

STEP 12 Lubricate the journal bearings, high-speed shaft, journal/thrust face with standard gearbox lubricant.

Lubricating the high-speed shaft.


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STEP 13 Lubricate the lower idler bearing.

STEP 14 Install idler shaft assembly.

Note: The idler shaft assembly sits at a slight tilt to allow installation of the bearing plate.

STEP 15 Install the bearing plate.

STEP 16 Install lube pump.


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STEP 17 Install lube pump spring.

The lube spring sits inside the lube pump.

STEP 18 Lubricate the lube pump.

STEP 19 Install input shaft assembly.

Note: Notice the input slots for the oil pump drive pins.

STEP 20 Push on input shaft to verify engagement of drive pins.


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STEP 21 Set idler shaft assembly in place and engage input gears.

STEP 22 Lube input shaft bearings and upper idler bearings.

STEP 23 Install upper housing gasket and o-ring.

STEP 24 Install upper gearbox housing. Note: Lower carefully in order to slide

bearings into bearing liners.

Note: Use hoist when available to prevent personal injury.

STEP 25 Install close tolerance alignment pins.

Note: Install first pin as noted on the bearing plate.


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STEP 25 continued

STEP 26 Install new lip seal. Note: Use lip seal installation tool #T-

H006AA-47 to install lip seal.

Putting lip seal onto lip seal installation tool.

STEP 26 continued

Installing the lip seal.


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STEP 27 Install remainder of gearbox hex head bolts.

Installing washers and nuts onto gearbox bolts.

Note: Torque to 65 ft-lbs.

STEP 28 Install fill and vent fitting. Note: Use pipe dope on all pipe threads. Use

pipe wrench to tighten fitting after sliding into place.

STEP 29 Install shaft anti-rotation device to prevent the impeller from spinning.


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STEP 30 Turn gearbox over.

STEP 31 Install gearbox-mating ring.

STEP 32 Install gearbox-mating ring o-ring.

STEP 33 Install gearbox seal o-ring onto gearbox seal.

STEP 34 Install gearbox seal.


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STEP 35 Install three gearbox seal hex head screws. Note: Torque screws to 75-80 in-lbs.

STEP 36 Install thermal barrier gasket.

STEP 37 Install upper shaft sleeve.

STEP 38 Install upper shaft o-ring.

STEP 39 Install seal housing. Note: Use “S” hooks or eyebolts and hoist

when available to prevent personal injury.

STEP 40 Install seal housing cap screws.

Note: Torque screws to 35-40 ft-lbs.


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STEP 40 continued

STEP 41 Install upper seal mating ring

STEP 42 Replace the mechanical seal.

Install o-ring on mechanical seal.

Note: Torque three hex head screws to 95 to 102 in-lbs.

STEP 43 Install lower shaft sleeve o-rings.


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STEP 44 Install lower seal o-ring and seal.

STEP 45 Insert lower seal screws. Note: Torque to 95-102 in-lbs.

STEP 46 Install lower mating ring.

STEP 47 Install diffuser cover o-rings.

STEP 48 Install the diffuser cover onto the gearbox.

Note: Rotate cover to engage alignment pin with hole in seal housing.

STEP 49 Install impeller o-ring.


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STEP 50 Install impeller (spline driven).

STEP 51 Install inducer. Note: Fully engage inducer stud into the

inducer before installing into the assembly.

Note: Torque inducer to 36-40 ft-lbs. Left hand thread.

STEP 51 continued

STEP 52 Replace upper diffuser o-ring.

STEP 53 Install lower diffuser o-ring. Note: Lower diffuser o-ring may require

stretching before installation.


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Step 53 continued

Lower diffuser o-ring inside the diffuser.

STEP 54 Lower the diffuser back onto the pump case.

STEP 55 Install seal housing and gearbox onto the pump case.

STEP 56 Install pump case nuts onto posts. Note: Torque to 250-275 ft-lbs.

Note: The impeller may rub on the diffuser cover plate until all the o-rings are compressed by the tightening of the hex nuts.

Note: When installing new anti-friction bearings, bearings should be pressed onto the shaft using a press which only contacts the inner race. Bearing damage will occur by pressing or pulling the outer race. No more than 0.001 inch (0.03mm) gap should exist between the bearings, spacers, gears, and shaft shoulders.


47

Procedure for Checking the High-Speed Shaft Endplay

The endplay of the shaft MUST be measured if any of the following parts have been replaced:

• High speed shaft assembly

• Thrust washer

• Output housing

• Journal bearing

• Bearing plate

Sundyne recommends checking endplay during any re-assembly.

To obtain correct shaft endplay shim spacers must be installed as required.

Note: All parts must be dry and free of oil.

STEP 1 Install the lower journal bearing (151A) into the gearbox output housing (101A). With no shim spacers installed, tighten screws (905M).

STEP 2 Install the upper journal bearing or bearing assembly (151B) into the bearing plate (102). With no shim spacers installed, tighten screws (905N).

STEP 3 If used, place both upper and lower thrust washers (155B and 155A) into the upper and lower journal bearings. Place the high-speed shaft assembly into the gearbox output housing.

STEP 4 Install the bearing plate (102) using two large-diameter alignment bolts (909C). Do not install the o-ring and gasket. Clamp the bearing plate to the output housing with two “C” clamps or bolts.

STEP 5 With the shaft in a vertical position, move the shaft up and down while measuring the total endplay with a dial indicator or depth micrometer. Shaft endplay must be 0.015 ± 0.002-inch (0.38 ± 0.05 mm). If endplay is not within this limit, calculate the shim thickness required to place the shaft within the proper

clearance range. Select the required thickness shim using 158 series shim spacer sizes.

STEP 6 Remove the alignment bolts (909C) and bearing plate (102) with upper journal bearing (151B).

STEP 7 Remove the high-speed shaft, thrust washers (if used), and the lower journal bearing.

STEP 8 Install the required shim spacers in place on the gearbox output housing and replace the lower journal bearing. Install attaching bolts (905M) and tighten.

STEP 9 Repeat steps 3-5 to verify correct endplay. If within specifications, proceed to step 10. If outside of tolerances, recalculate shims required and repeat steps 3-9.

STEP 10 Install the lower thrust washer (155A-if used) with the flat side on the bearing surface and replace the high-speed shaft.

STEP 11 Install the upper thrust washer (155B-if used) with the flat side on the journal bearing’s surface. A light grease may be used to hold the thrust washer in place.

Note: Never install shims behind the upper journal bearing.

STEP 12 Continue the reassembly of the gearbox by placing the idler shaft (140) in the lower half of the gearbox. Do not allow the idler shafts lower ball bearing to slide into the bearing retainer at this stage of the assembly.

STEP 13 Position the bearing plate (102) on the lower half of the gearbox. Ensure that the lube passage o-rings (936T) and housing gaskets (105) are positioned correctly.


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STEP 14 Install the low speed shaft assembly into the bearing plate bearing liner with the shaft aligned so that the lube pump drive pins slip into the low speed shaft. The top surface of the bearing should be even with the top of the bearing liner. The idler shaft can then be allowed to drop into the lower bearing liner, engaging the four gears.


49

TROUBLESHOOTING

Gearbox & Pump Diagnostics

Several system factors may affect the performance of the pump. These factors are:

• Temperature

• Specific gravity

• Suction pressure

• Driver speed

• Flow rate

• Control characteristics

These factors as well as internal problems must be considered when analyzing pump system performance. The following table gives diagnostic information that can be useful when analyzing gearbox and pump performance problems.

Table 1. Gearbox and Pump Diagnostics

Situation/Symptom Possible Cause Investigative/Corrective Action

Pump not completely filled with liquid. Bleed all vapor or air from port 6. Allow more cool-down time if pumping low temperature fluid. Check suction line for air leak if suction pressure is lower than atmospheric.

NPSH actually lower than NPSH requirement listed on specification sheet.

Suction line blocked – check suction screen and valve. Excessive pressure drop through suction piping. Flow restricted by vapor pockets in high points of suction line. Suction tank level or pressure too low. Entrained air or vapor in pumped fluid. NPSH reduced by presence of more volatile fluid in process fluid.

Failure of drive component, such as interconnecting shaft or impeller key, or item missing from assembly.

Disassemble and inspect.

No flow, no pressure at start-up.

Reverse direction of rotation. Direction of driver shaft rotation must be as shown by arrow on pump casing. Note: Impeller and driver rotate in the same direction.

Flow too high. Check total head and flow rate against performance curve.

Wrong direction of driver shaft rotation. (It is possible for the pump to develop greater than 50 percent design total head in this condition).

Direction of driver shaft rotation must be as shown by arrow on pump casing. Note: Impeller and driver rotate in the same direction.

NPSH actually lower than NPSH requirement listed on specification sheet.

Refer to solutions listed under “No flow, no pressure at start-up”.

Flow too low, causing overheating of fluid resulting in internal boiling and unstable pump operation.

Increase through-flow rate. Bypass part of pump discharge to supply tank.

Insufficient total head.

Diffuser discharge throat partially plugged or impeller damaged by passage of a solid particle.

Clean these areas of all obstructions and restore surfaces to a smooth polished finish free of all corrosion pitting. Edge of diffuser throat must be sharp.


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Corrosion and/or erosion of diffuser throat (may also be accompanied by corrosion/ erosion of diffuser and cover surface adjacent to impeller).

If edge of throat is no longer sharp and smooth or has opened in size, head-rise may be reduced. Opening of the inlet area of the throat will result in higher flow rate and horsepower consumption. Corrosion/erosion of diffuser and cover surfaces will result in a significant horsepower increase.

Excessive recirculation from discharge to inlet. Check flow through external plumbing. Pump o-ring (936C) damaged or missing. Integral centrifugal separator orifice worn.

Process fluid specific gravity or viscosity different from values shown on specification sheet.

Check actual viscosity and specific gravity at operating temperature. Viscosity higher than five centipoise will cause reduced head and flow and increased power consumption.

Driver speed too low. Check speed against value listed on specification sheet.

Insufficient total head cont.

Pressure gauges or flow meters in error Calibrate instrumentation.

Fluid specific gravity or viscosity higher than values listed on specification sheet.

Check actual viscosity and specific gravity against value listed on specification sheet.

Electrical failure in electric driver. Check circuit breaker heater size and setting. Check voltage and voltage balance between phases. Current for each phase should be balanced within three percent.

Mechanical failure in driver, gearbox or pump. Remove driver and check for freedom of rotation,correct spacing of pump and gearbox shaft assemblies. Remove fluid end and search for any mechanical failure. Remove gearbox oil level sight glass and inspect bottom of sump for wear particles. Bearings are probably not damaged if no wear particles are present.

Driver overloaded.

Corrosion pitting on surface of diffuser cover or diffuser, adjacent to impeller blades. Head rise is also reduced by this condition.

Disassemble pump and inspect. Rough or pitted surfaces can cause friction losses which will significantly increase horsepower consumption. Clean these areas of all obstruction and restore surfaces to a smooth polished finish. Check diffuser throat area at the inlet; erosion or corrosion resulting in roughness or increased area will increase horsepower consumption. Note: A larger throat size than design will allow a higher flow and horsepower for a given head rise.

Flow rate too low. Increase flow rate through pump. Add bypass to suction tank if necessary.

Insufficient NPSH available. Refer to solution for insufficient NPSH under “No flow, no pressure at startup,” above.

Excessive discharge pressure pulsations.

Defective flow control valve. Check control valve.

Change of gearbox oil from normal color to milky pink or yellow

Gearbox oil contaminated with water or process fluid.

Inspect gearbox heat exchanger for leakage. Check for excessive pump seal leakage. Inspect shaft sleeve o-rings. Inspect that seal housing port 1 and other seal drains are open for unrestricted seal leakage flow.


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Shaft sleeve rubs on inside diameter of seal.

Gearbox journal bearing failure. Install replacement exchange gearbox or repair gearbox as outlined under “Maintenance”.

Low speed shaft seal (115) leakage. Check drain port for leakage. Replace shaft seal if required.

High speed shaft mechanical seal (60C) leakage. Check upper gearbox housing drain port for leakage. Replace shaft seal if required.

Excessive gearbox oil consumption.

Leakage through heat exchanger into cooling fluid. Pressure test heat exchanger and replace if required.

High oil level. Shut down the unit and check oil level. Excessive oil foaming.

Low gearbox temperature. Incorrect lubricant. Adjust coolant to heat exchanger, keeping oil temperature above 140°F, 60°C.

High gearbox temperature.

Heat exchanger fouled or coolant shut off. Oil level too high.

Check coolant flow and/or clean heat exchanger. Check oil level and adjust.

Pump Mechanical Seal Diagnostics

The following table contains diagnostic information that is applicable to single seal, double seal, and tandem seal equipped units.

Repair procedures for mechanical seals are listed in this manual under Maintenance.

Table 2. Pump Mechanical Seal Diagnostics

Situation/Symptom Possible Cause Investigative/Corrective Action Severe cavitation or loss of suction causing vibration and bouncing of seal face.

Correct pump suction condition causing cavitation. Bleed vapor from seal cavity and restart.

Install double seal if loss of suction cannot be prevented.

Seal icing on low temperature pumps or icing when handling fluids which vaporize at a temperature of less than +32°F (0°C) at atmospheric pressure

Quench with compatible fluid which will not freeze at pump temperature through seal drain port 2 or 7 to prevent ice formation on atmospheric side of seal during start-up and in running condition.

Use purge of dry nitrogen gas through ports 2 or 7.

Install double or tandem seal if ice is caused by water in process fluid or supply external seal flush of compatible fluid which does not contain water.

Sudden increase in seal leakage.

Solid particles in seal cavity or seal spring area (seal faces usually have rough scratched appearance).

Inspect for clogged integral centrifugal separator orifices. Clean orifices if necessary (plan 31 if so equipped.)

Supply external clean seal flush or double seal if particles cannot be removed by separator.

Sudden increase in seal leakage (continued)


52

Situation/Symptom Possible Cause Investigative/Corrective Action Seal stationary face spring action is rough and sticky.

If parts are corroded, replace with parts made from compatible materials.

If formation of solids causes sticky seal analyze fluid properties. Use external seal flush or double seal arrangement.

Worn or damaged seal. Disassemble seal and rebuild or replace per instructions in maintenance section.

Wear pattern on seal rotating faces not uniform. Lightly lap surfaces of shaft sleeve and impeller hub which contact rotating seal face to remove high spots. Install new seal faces.

Wear pattern on stationary face smooth but not uniform.

Lap flat or replace seal.

Edges of stationary face chipped and seal face worn. (Vapor flashing in seal cavity will cause excessive wear and/or cracking of rotating face.)

Install seal cavity bypass to suction tank.

Prevent loss of pump suction.

Supply cool seal flush.

Install double seal.

Seal rotating face cracked or broken. May be caused by damage at assembly or thermal shock caused by seal running dry.

Prevent loss of pump suction or supply continuous external seal flush.

Install double seal.

Chemical attack of seal faces, seal parts or o-rings.

Investigate fluid properties and determine suitable materials for replacement.

Excessive radial high speed shaft movement. Bent high speed shaft or severe out-of-balance.

Check high speed shaft journal bearings and replace if necessary. Check if damage exists on impeller and/or inducer which will indicate that a large particle went through the pump. Deposits on the impeller/inducer causing unbalance.

Damage to mechanical seal secondary seal (Teflon® wedge or U-cup or elastomer o-ring).

Check for erosion and/or corrosion attack. Install seal flush or double seal arrangement.

Loose stack-up of high-speed shaft attaching components.

Check for correct impeller bolt/inducer torque. Check for cold flow of Teflon® o-rings.


53

SPECIFICATIONS

Falk Steelflex Type Coupling Specifications

Table 3. Falk Steelflex Type Coupling Specifications

End Gap Falk Coupling

Size Minimum Normal Maximum

Cover Bolt

Torque

40T10 0.062 in.

(1.57 mm)

0.125 in.

(3.17 mm)

0.188 in.

(4.77 mm)

100 in-lb

(1.15 kg-m)

50T10 0.062 in.

(1.57 mm)

0.125 in.

(3.17 mm)

0.188 in.

(4.77 mm)

200 in-lb

(2.30 kg-m)

60T10 0.062in.

(1.57 mm)

0.125 in.

(3.17 mm)

0.188 in.

(4.77 mm)

200 in-lb

(2.30 kg-m)

70T10 0.062 in.

(1.57 mm)

0.125 in.

(3.17 mm)

0.188 in.

(4.77 mm)

200 in-lb

(2.30 kg-m)

80T10 0.062 in.

(1.57 mm)

0.125 in.

(3.17 mm)

0.250 in.

(6.35 mm)

200 in-lb

(2.30 kg-m)

Falk Double Gear Type Coupling Specifications

Table 4. Falk Steelflex Type Coupling Specifications

End Gap Operating Limits

Total Indicator

Reading

Falk

Coupling

Size

Minimum Normal Maximum Offset (Maximum)

Angular (Maximum)

Bolt Torque

15G 0.140 in.

(3.56 mm)

0.156 in.

(3.96 mm)

0.172 in.

(4.36 mm)

0.005 in.

(0.127 mm)

0.005 in.

(0.127 mm)

280 in-lb

(3.22 kg-m)

20G 0.140 in

(3.56 mm)

0.156 in.

(3.96 mm)

0.172 in.

(4.36 mm)

0.005 in.

(0.127 mm)

0.005 in.

(0.127 mm)

420 in-lb

(4.83 kg-m)


54

Falk Double Gear Type-Vertical Specifications

Table 5. Falk Double Gear Type-Vertical Specifications

Operating Limits

(Total Indicator Limit)

Falk Coupling Size

Offset

(Maximum)

Angular

(Maximum)

Bolt Torque

15GL

15GV

0.005 in.

(0.127 mm)

0.005 in.

(0.127 mm)

280 in-lb

(3.22 kg-m)

20GL

20GV

0.005 in.

(0.127 mm)

0.005 in.

(0.127 mm)

420 in-lb

(4.83 kg-m)

Thomas Type DBZ Coupling Specifications

Table 6. Thomas Type DBZ Coupling Specifications

End Gap Thomas Coupling

Size Minimum Normal Maximum

Cover Bolt

Torque

163 0.876 in.

(22.24 mm)

0.938 in.

(23.81 mm)

1.005 in.

(25.41 mm)

156 in-lb

(1.80 kg-m)

201 0.876 in.

(22.24 mm)

0.938 in.

(23.81mm)

1.005 in.

(25.41 mm)

300 in-lb

(3.46 kg-m)

226 1.126 in.

(28.59 mm)

1.188 in.

(30.18 mm)

1.251 in.

(31.76 mm)

516 in-lb

(5.95 kg-m)

263 1.219 in.

(30.97 mm)

1.313 in.

(33.35 mm)

1.407 in.

(35.73 mm)

756 in-lb

(8.72 kg-m)

301 1.406 in.

(35.72 mm)

1.500 in.

(38.10 mm)

1.594 in.

(40.48 mm)

1140 in-lb

(13.15 kg-m)


55

Thomas SN Spacer Type Vertical & Horizontal Coupling Specifications

Table 7. Thomas SN Spacer Type Vertical & Horizontal Coupling Specifications

End Gap Operating Limits

Total Indicator

Reading

Thomas

Coupling

Size

Minimum Normal Maximum Offset (Maximum)

Angular (Maximum)

Bolt Torque

SN226 0.563 in.

(14.30mm)

0.594 in.

(15.09mm)

0.625 in.

(15.88mm)

0.005 in.

(0.127mm)

0.005 in

(0.127mm)

516 in-lb

(5.95 kg-m)

SN262 0.438 in.

(11.13mm)

0.469 in.

(11.91mm)

0.500 in

(12.70mm)

0.005 in.

(0.127mm)

0.005 in.

(0.127mm)

516 in-lb.

(5.95 kg-m)

SN312 0.469 in.

(11.91mm)

0.500 in.

(12.70mm)

0.531 in.

(13.49mm)

0.005in.

(0.127mm)

0.005 in.

(0.127mm)

756 in-lb

(8.72 kg-m)


56

Gearbox Lube Oil Specifications

Table 8. Gearbox Lube Oil Specifications

Recommended Gearbox Lube Oil Specifications

API Gravity 28 – 37

Pour Point, °C (°F) -7 (20) max.

Flash Point, °C (°F) 204 (400) min.

Viscosity, cST at 40°C 28.8 to 35.2 (150/180 SSU @ 100°F)

Viscosity, CST at 100°C 5.2 (44 min. SSU @ 210°F

Viscosity, Index 95 minimum

ISO Viscosity Grade 32

Color, Maximum

ASTM D 1500 1 to 5

Neut.Number, Maximum 0.20

Rust Protection Pass

ASTM D 665, A & B

Demulsibility

ASTM D 1401

Minutes to 0 ml emulsion -

At 54°C (130°F) after 30 min. Pass

At 82°C (180°F) after 60 min. Pass

Foam Limits, ASTM D 892

Sequence 1 25/0 max.



Note: No other additives are recommended.


57

Gearbox Parts List

Table 9. Gearbox Parts List

Item No.

Part Name Qty. Item No.

Part Name Qty.

23A Lube Pump Spring 1 173 Tube (Sump) 1

51D Seal Rotating Face 1 174A Lube Jet 1

60C Mechanical Seal 1 174B Lube Jet 1

98 Dust Cover (For Coupled Shaft Only) 1 174C Lube Jet 1

101A Gearbox Housing (Output) 1 174D Lube Jet 1

101B Gearbox Housing (Input) 1 177 Valve 1

102 Bearing Plate 1 180 Filter Manifold 1

105 Housing Gasket 2 185 Oil Filter (FRAM PH-41) *1

110 Interconnecting Shaft 1 186 Fill and Vent Fitting 1

115 Shaft Seal *1 191 Sight Glass 1

A120 Low Speed Shaft Assembly 1 193C Pressure Gage 1

120 Low Speed Shaft 1 905E Hex Head Cap Screw 3

122A Spur Gear (Low Speed) 1 905H Hex Head Cap Screw 2

123A Shaft Spacer (Low Speed) 1 905M Hex Head Cap Screw 3

125C Ball Bearing *1 905N Hex Head Cap Screw 3

125D Ball Bearing *1 909B Bolt 7

A130 High Speed Shaft Assembly 1 909C Bolt (alignment) 2

130 High Speed Shaft 1 914E Hex Nut 7

132B Pinion Gear (High Speed) 1 914F Hex Nut (Alignment) 2

133B Thrust Runner 1 916A Washer 3

A140 Idler Shaft Assembly 1 916D Washer 2

140 Idler Shaft 1 916H Washer 14

122C Spur Gear (Idler) 1 961J Washer (alignment) 4

123B Shaft Spacer (Idler) 1 918D Pin 1

123C Shaft Spacer (Idler) 1 920A Key 1

125A Ball Bearing *1 920B Key 1

125B Ball Bearing *1 920C Key 1

132C Pinion Gear 1 920D Key 1

151A Journal Bearing or Tilting Pad 1 920F Key (For Coupled Shaft Only) 1


58

Item No.

Part Name Qty. Item No.

Part Name Qty.

Journal and Thrust Bearing 924AA Pipe Plug 1

Assembly (Lower) 924E Pipe Plug 1

151B Journal Bearing or Tilting Pad 1 924G Pipe Plug 1

Journal and Thrust Bearing 924H Pipe Plug 1

Assembly (Upper) 924K Pipe Plug 1

154D Lock Washer (Lower) 3 936K O-ring Packing 1

154E Lock Washer (Upper) 3 936M O-ring Packing *2

155A Thrust Washer (Lower) – required with Journal Bearing

1 936N

936T

O-ring Packing

O-ring Packing

*2

*2

155B Thrust Washer (Upper) – required with Journal Bearing

1 944a

944b

Pipe Connector (Female)

Pipe Connector (Male)

1

1

158 Shim Spacers AR 947A Elbow 1

160 Lube Pump *1 951Y Nipple 1

*Recommended Spare Parts

Gearbox Replacement Parts

Table 10. Gearbox Replacement Parts

Item No. Part Name Qty.

185 Gearbox Oil Filter 1

115 Input Shaft Lip Seal 1

105 Housing Gasket 2

936M O-ring Packing 2

936N O-ring Packing 2

936T O-ring Packing 2

158 Series * Shim Spacers As Required

MP01AA10 Anti-fretting Compound Tube

*Available in sets of five 0.005 inch (0.13mm), 0.010 inch (0.25mm)


59

Gearbox and Pump Torque Values

Table 11. Gearbox and Pump Torque Values

Gearbox

Item No. Location Size Torque Value 905H 905L 905M,N 905T 909B 909C

Oil Filter Manifold Gearbox Seal Journal Bearings Chemical Barrier Gasket Gearbox Halves Gearbox Halves, Alignment Sight Glass

3/8 - 16 x ½ ¼ - 20 x ½ #10 - 24 x 1 ¼ - 20 x 5/8 ½ - 13 x 4 5/8 - 18 x 4 17/64 #8 - 32 x 1/2

22-25 ft-lbs (30 - 34 N-m) 75-80 in-lbs (8.5 - 9.0 N-m) 35-40 in-lbs (4.0 - 4.5 N-m) 75-80 in-lbs (8.5 - 9.0 N-m) 60-65 ft-lbs (81 - 88 N-m) 60-65 ft-lbs (81 - 88 N-m) 20-22 in-lbs (2.3 - 2.5 N-m)

Pump

Item No. Location Size Torque Value 3 905E 905F 905G 914A -- 905P

Impeller Bolt/Inducer Mechanical Seal No. Spacer Throttle Bushing/Mechanical Seal Double Seal with Spacer Case Nuts Seal Housing to Gearbox Separator

½ - 20 ¼ - 20 x 12 ¼ - 20 x 12 ¼ - 20 x ¾ ¾ - 10 3/8 - 16 x 1 ¾ ¼ - 20 x 5/8

36 - 40 ft-lbs (49 - 54 N-m) 95 - 102 in-lbs (11 - 12 N-m) 95 - 102 in-lbs (11 - 12 N-m) 95 - 102 in-lbs (11 - 12 N-m) 250-275 ft-lbs (340 - 370 N-m) 35 - 40 ft-lbs (48 - 54 N-m) 95 - 102 in-lbs (11 - 12 N-m)

Note: When using PTFE o-rings, allow 15 minutes between repeated torquing for the PTFE to cold flow. Repeat until there is no change in torque value.


60

Mechanical Seals

Table 12. Mechanical Seals

Item No.

Lower

Process

Seal

Upper

Process

Seal

Gearbox

Seal

Description

60A 60-B 60C Mechanical Seal Assembly

61A 61B 61C Seal Retainer

*62A 62B* *62C Seal Face Washer

*63A 63B N/A Seal Spring Backup Ring

*64A 64B* *64C Seal Retaining Ring

65A 65B* *65C Seal Spring

*68A 68B* N/A Teflon Wedge

*69A 69B* *69C Secondary may be “U” Cup or o-ring

*Seal Repair Kits are Available and contain all parts marked with a single asterisk.

Item 60C to be used on gearbox only.

To maximize seal performance consult the parts list for correct seal configuration. For additional information, please contact your area representative or the Sundyne factory direct.


61

1 ½” gas seal for upper tandem position on light hydrocarbon service only

Gearbox Seal Only

Instruction & Operation Manual

62

Pump Disassembly Replacement Parts

Table 13. Pump Disassembly Replacement Parts

The following replacement parts will be required as a result of pump disassembly for maintenance as shown in this section:

Item No. Part Name Qty.

87A Thermal Barrier Gasket 1

RKORP311 O-ring Repair Kit for the pump end consisting of:

936A • O-ring Packing

936D • O-ring Packing

936E • O-ring Packing

936F • O-ring Packing

936G • O-ring Packing

936H • O-ring Packing

936J • O-ring Packing

936K • O-ring Packing

936P • O-ring Packing

936V • O-ring Packing

936Z • O-ring Packing

See Seal Graphics Technical Seal Repair Kits High Seal Rotating faces:

51A • Single 1

51A/51C • Tandem 2

51C • Double 1

936B • O-ring Packing 1

936C • O-ring Packing 1


63

Pumps Parts List

Table 14. Pump Parts List

Item No.

Part Name Qty Item No.

Part Name Qty

1 Pump Casing 1 911 Stud 12

2 Impeller 1 914A Hex Nut 12

3 Impeller Bolt 1 916B Washer 3

4 Impeller Key *1 916S Washer 4

5 Impeller Tab Washer *1 918A Pin 1

9 Inducer (Optional) 1 924B Pipe Plug 1

10 Inducer Stud (Optional) 1 924D Bull Plug 1

13 Diffuser 1 936A O-ring Packing *1

14A Locating Pin 2 936B O-ring Packing *1

15 Diffuser Cover 1 936C O-ring Packing *1

21B Throttle Bushing 1 936D O-ring Packing *1

30 Seal Housing 1 936E O-ring Packing *1

50 Slinger Sleeve Assembly 1 936F O-ring Packing *1

51A Seal Rotating Face *1 936G O-ring Packing *1

51C Seal Mating Ring *1 936H O-ring Packing *1

87A Spacer (or Thermal Barrier Gasket) (Large)

1 936J O-ring Packing *1

905A Hex head Cap Screw 3 981 Baffle Plate 1

905F Hex Head Cap Screw 3

* Recommended spare parts


64

Double Seal Arrangement and Parts

Figure 12. Double Seal Arrangement

Table 15. Double Seal Arrangement

ITEM NO.

PART NAME QTY ITEM

NO.

Part Name QTY

19A Seal Retaining Spacer 1 60B Mechanical Seal (Upper) *1

50A Shaft Sleeve (Lower) *1 61B - Retainer & Drive Sleeve Assembly 1

50B Shaft Sleeve (Upper) *1 62B - Seal Face Washer **1

51C Seal Rotating Face *1 63B - Seal Spring Back-Up Disc **1

52 Seal Spacer 1 64B - Seal Retaining Ring **1

60A Mechanical Seal (Lower) *1 65B - Seal Spring **6

61A - Retainer & Drive Sleeve Assembly 1 68B - Seal Wedge Ring **1

62A - Seal FAce Washer **1 905F Hex Head Cap Screw 3

63A - Seal Spring Back-Up Disc **1 916B Washer 3

64A - Seal Retaining Ring **1 936H O-ring Packing *4

65A - Seal Spring **6 936J O-ring Packing *2

68A - Seal Wedge Ring **1

* Recommended Spare Parts **Recommended Seal Spare Component Parts


65

Single Seal Arrangement and Parts

Figure 13. Single Seal Arrangement

Table 16. Single Seal Arrangement

Item No. Part Name Qty. Item No. Part Name Qty.

21B Upper Throttle Bushing 1 905L Hex Head Cap Screw 3

50 Slinger Sleeve Assembly *1 916A Washer 3

51A Seal Rotating Face *1 916B Washer 3

51D Seal Rotating Face (Gearbox) *1 916K Washer 3

60A Mechanical Seal (Lower) *1 936H O-ring Packing *2

60C Mechanical Seal (Gearbox) *1 936J O-ring Packing *1

905E Hex Head Cap Screw 3 936K O-ring packing *1

905F Hex Head Cap Screw 3 936P O-ring Packing *1



66

Tandem Seal Arrangement and Parts

Figure 14. Tandem Seal Arrangement

Table 17. Tandem Seal Arrangement

Item No. Part Name Qty. Item No. Part Name Qty.

21B Upper Throttle Bushing 1 905L Hex Head Cap Screw 3

50 Slinger Sleeve Assembly *1 916A Washer 3

51A Seal Rotating Face *1 916B Washer 3

51D Seal Rotating Face (Gearbox) *1 916K Washer 3

60A Mechanical Seal (Lower) *1 936H O-ring Packing *2

60C Mechanical Seal (Gearbox) *1 936J O-ring Packing *1

905E Hex Head Cap Screw 3 936K O-ring packing *1

905F Hex Head Cap Screw 3 936P O-ring Packing *1



67

Separator Arrangements

Figure 15. Separator Arrangements


68

Pump and Gearbox Cross Section (Single Seal Arrangement)

Figure 16. Pump and Gearbox Cross Section


69

LMV-311 Gearbox (Exploded View)

Figure 17. Gearbox - Exploded View


70

Pump Casing and Seal Housing (Exploded View)

Figure 18. Pump Casing and Seal Housing (Exploded View)


71

Gaskets

Figure 19. Chemical Barrier Gasket (option)

Figure 20. Flexitallic Gasket (option)


72

INDEX

Auxiliaries, 3 Auxiliary Lube Pump, 4 Bearing and Shaft Clearances, 32 BMP Units, 10 Check Driver Rotation, 3 Check Operating Procedures, 4 Chemical Use, 2 Control Checklist, 4 Controlling the Pump During Startup, 16 Disassembly of LMV-311, 19 Double Seal Arrangement and Parts, 64 Driver and Coupling, 10 Driver Instructions, 3 Electrical Safety, 2 Entrained Gases, 17 Environmental Control System, 3 Equipment and Safety, 1 Explosion/Fire Hazard, 3 Falk Double Gear Type Specifications, 53 Falk Double Gear Type-Vertical Specifications,

54 Falk Steelflex Type Coupling Specifications, 53 Fall Protection, 2 Flexible Coupling for LMV Units Without a

Vertical Stand, 11 Gaskets, 71 Gearbox, 13 Gearbox & Pump Diagnostics, 49 Gearbox and Pump Torque Values, 59 Gearbox Heat Exchanger, 12 Gearbox Lube Oil Specifications, 56 Gearbox Mechanical Seal, 31 Gearbox Parts List, 57 Gearbox Replacement Parts, 58 Gearbox Servicing, 4 Gearbox Sump, 13 Gearbox Sump Heater, 13 Heat Exchanger, 4 High-Speed Shaft, 31 High-Speed Shaft Endplay, 47 Index, 72 Inspecting All Bearings, 31 Inspection, 7 Inspection, Cleaning and Repair, 31 INSTALLATION, 7 Installation and Start-Up Checklist, 5 ISO 9001, 1 Liquid Buffer System, 9 LMV-311 Gearbox (Exploded View), 69 Lube System, 12 Machine Familiarization, 3

Main Lube Pump and Lube Oil Priming Kit, 14 Maintenance, 19 Mechanical Seals, 60 Minimum Flow Conditions, 17 Mounting Vertical Units with Stands (LMV), 10 Mounting Vertical Units Without Stands, 9 Oil Manifolds, 12 Oil Pressure, 14 Operation of Sundyne Pumps, 17 Parallel Operation, 16, 18 Personal Protective Equipment, 2 Piping Connections, 3 Pre-Commission Checklist, 3 Pressurizing Fluid Loop, 4 Preventative Machine Guards, 2 Pump and Gearbox Cross Section (Single Seal

Arrangement), 68 Pump Disassembly Replacement Parts, 62 Pump Mechanical Seal Diagnostics, 51 Pumps Parts List, 63 Reassembly, 33 Remote Heat Exchanger, 13 Seal Environmental Control System, 9 Separator Arrangements, 67 Setting Pump Valves, 4 Shaft Sleeve, 32 Single Operation, 16 Single Seal Arrangement and Parts, 65 Specifications, 53 Start-Up Procedures, 15 Storing Your Pump Long-Term, 7 Storing Your Pump Short-Term, 7 Suction and Discharge Piping, 8 Suction Conditions, 17 SundGard™ Oil Filter, 13 Sundyne Centrifugal Pumps, 1 System Head Curve, 17 Tandem Seal Arrangement and Parts, 66 Testing Equipment, 2 Text Symbols, 1 Thomas SN Spacer Type-Vertical & Horizontal

Specifications, 55 Thomas Type DBZ Coupling Specifications, 54 Troubleshooting, 49 Using Forklifts, 2

14845 W. 64th Avenue • Arvada, Colorado 80007 USA • +1-303-425-0800 • FAX: +1-303-425-0896 • www.sundyne.com Sundyne Europe • Longvic Cedex • France • 011-33-3-80-383300 • FAX: 011-33-3-80-383371

ANSIMAG • ANYSPEED • CASTER • GSP • HMD/KONTRO • MASO/SINE • SCMP • SUNDYNE COMPRESSORS • SUNDYNE • SUNFLO

Sundyne LMV-311 Manual

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